_______ are the agents that act as carriers of a pathogen and spread diseases.

DNA

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Parasites

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Microbes

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Vectors

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Solution

The correct option is D Vectors
Animals or insects carry infecting agents from a sick person to another potential host. These animals are thus the intermediaries and are termed as vectors. The most common vectors are mosquitoes.

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___ is an agent that acts as an intermediate carrier of a pathogen.

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